The twenty characteristics are below my signature.
When properly completed by a qualified professional, the PCL-R provides a total score that indicates how closely the test subject matches the "perfect" score that a classic or prototypical psychopath would rate. Each of the twenty items is given a score of 0, 1, or 2 based on how well it applies to the subject being tested. A prototypical psychopath would receive a maximum score of 40, while someone with absolutely no psychopathic traits or tendencies would receive a score of zero. A score of 30 or above qualifies a person for a diagnosis of psychopathy.
I come up with a score of 30 for Trump. Granted, I'm not a qualified professional, but I am an American distressed over a Republican candidate with too many psychopathic tendencies and a Democrat candidate who is a pathological liar, a scoundrel, a crook, and an unreformed 1960s leftist. Fortunately, LIbertarian candidate Gary Johnson seems like an ethical, mentally-balanced person by comparison. And to top it off, he's not a socialist, mercantilist, corporatist, imperialist, autocrat, or race monger.
The twenty traits assessed by the PCL-R score are:
glib and superficial charm
grandiose (exaggeratedly high) estimation of self
need for stimulation
cunning and manipulativeness
lack of remorse or guilt
shallow affect (superficial emotional responsiveness)
callousness and lack of empathy
poor behavioral controls
early behavior problems
lack of realistic long-term goals
failure to accept responsibility for own actions
many short-term marital relationships
revocation of conditional release